@echo off
echo Which timer?
:MENU
@echo Your Choices:
@echo   [1] - 10s
@echo   [2] - 30s
@echo   [3] - 60s
SET /P M=Choose one of the above and then press ENTER:  
IF %M%==1 start 10s.bat
IF %M%==2 start 30s.bat
IF %M%==3 start 60s.bat
